#include<iostream>
using namespace std;
const int MAX_NUM = 100;
int main()
{
	int a[][3]={{2,1},{3,4}};
	cout<<sizeof(a)<<endl;
	for(int i=0;i<2;++i){
		for(int j=0;j<3;++j)
		cout<<a[i][j]<<" ";
		cout<<endl;
	}
	return 0;
}